Recent postshttps://software.intel.com/en-us/recent/503945
enstatic compilation questionhttps://software.intel.com/en-us/forums/topic/366868
<p>Hi,</p>
<p>I have a code written in c++ which uses pthreads. I have managed to generate a program version which uses shared libs and which has succesfully ran on XEON Phi (I have seen 100 threads running on the MIC). I am in the process of convincing icc/icpc to compile without errors a static version of the same program to reduce the overhead generated by the shared lib function calls.</p>
<p>I wonder what happens with the libs which were not compiled with icc and definitely not for MIC architecture. I mean what happens when pthreads functions are called from a program which runs on MIC? Do I have to recompile pthreads for the MIC architecture?</p>
<p>Thanks,</p>
<p>Dragos</p>
</p>
Fri, 08 Feb 13 12:11:54 -0800dragos000366868Issues using Xeon Phi 5110P https://software.intel.com/en-us/forums/topic/366821
<p>My team just purchased an Intel Xeon Phi this week with the hope of doing some initial testing for a project we're working on using an HP 8300 desktop PC. For the moment we're using these for testing while we figure out what our long term hardware requirements will be so that when we buy server hardware it ends up being exactly what we need.</p>
<p>I got the card yesterday and (naively) popped it into our HP 8300. When I power the box on, the BIOS just hangs, never even outputting anything to the display. I remove the card and everything is fine. </p>
<p>Unfortunately there is not a lot of information to find about these cards yet, but I did find one other post on this forum from a few weeks ago that indicates that the Xeon Phi requires some kind of "large BAR" support in the BIOS that many may not have. </p>
<p>Has anyone else had similar issues with these? Anyone come to a conclusion about exactly what is needed to use one of these cards? I know that the product page on Intel's site lists a handful of server motherboards that are compatible but surely there are others that will work, right?</p>
<p>Any input or suggestions you have are greatly appreciated. Thank you!</p>
Fri, 08 Feb 13 09:09:22 -0800Justin Bennett366821Big data on MIChttps://software.intel.com/en-us/forums/topic/366603
<p>I am new programmer for MIC, I wonder if Xeon Phi can handle big data, say larger than 8GB which is the DRAM size on MIC?</p>
<p>Does MIC needs similar memory copy handles like GPU?</p>
<p>Thanks!</p>
Thu, 07 Feb 13 16:08:52 -0800Ben F.366603What collateral/documentation do you want to see?https://software.intel.com/en-us/forums/topic/366599
<p>Do you have questions that you are not finding the answers for in our documentation? Need more training, source code examples, on what specifically? Help us understand what's missing so that we can make sure we develop documentation you care about (what is important, and what is nice to have)! Thank you</p>
Thu, 07 Feb 13 15:59:55 -0800BELINDA L. (Intel)366599icc on Linux - error: function &quot;__gthrw_pthread_once&quot; was referenced but not definedhttps://software.intel.com/en-us/forums/topic/289533
<p>Hello,</p>
<p>I'm trying to build CLHEP (<a href="http://www.cern.ch/">http://www.cern.ch/</a><b>clhep</b>) and Geant4 toolkit (<a href="http://www.geant4.org">http://www.geant4.org</a>) with Intel C++ Compiler 11.1.069 on machine with SLES 11 and gcc 4.3.2.</p>
<p>I have the following error:</p>
<p>Command line: icc -DHAVE_CONFIG_H -I. -I. -I../Vector -I.. -I/opt/intel/Compiler/11.1/069/include -O -ansi -fp-model precise -no-gcc -w1 -MT AxisAngle.o -MD -MP -MF ".deps/AxisAngle.Tpo" -c -o AxisAngle.o AxisAngle.cc</p>
<p>Output:<br />/usr/include/c++/4.3/x86_64-suse-linux/bits/gthr-default.h(100): error: function "__gthrw_pthread_once" was referenced but not defined<br /> __gthrw(pthread_once)<br /> ^</p>
<p>/usr/include/c++/4.3/x86_64-suse-linux/bits/gthr-default.h(101): error: function "__gthrw_pthread_getspecific" was referenced but not defined<br /> __gthrw(pthread_getspecific)<br /> ^</p>
<p>/usr/include/c++/4.3/x86_64-suse-linux/bits/gthr-default.h(102): error: function "__gthrw_pthread_setspecific" was referenced but not defined<br /> __gthrw(pthread_setspecific)<br /> ^</p>
<p>/usr/include/c++/4.3/x86_64-suse-linux/bits/gthr-default.h(104): error: function "__gthrw_pthread_cancel" was referenced but not defined<br /> __gthrw(pthread_cancel)<br /> ^</p>
<p>/usr/include/c++/4.3/x86_64-suse-linux/bits/gthr-default.h(105): error: function "__gthrw_pthread_mutex_lock" was referenced but not defined<br /> __gthrw(pthread_mutex_lock)<br /> ^</p>
<p>/usr/include/c++/4.3/x86_64-suse-linux/bits/gthr-default.h(106): error: function "__gthrw_pthread_mutex_trylock" was referenced but not defined<br /> __gthrw(pthread_mutex_trylock)<br /> ^</p>
<p>/usr/include/c++/4.3/x86_64-suse-linux/bits/gthr-default.h(107): error: function "__gthrw_pthread_mutex_unlock" was referenced but not defined<br /> __gthrw(pthread_mutex_unlock)<br /> ^</p>
<p>/usr/include/c++/4.3/x86_64-suse-linux/bits/gthr-default.h(109): error: function "__gthrw_pthread_cond_broadcast" was referenced but not defined<br /> __gthrw(pthread_cond_broadcast)<br /> ^</p>
<p>/usr/include/c++/4.3/x86_64-suse-linux/bits/gthr-default.h(110): error: function "__gthrw_pthread_cond_wait" was referenced but not defined<br /> __gthrw(pthread_cond_wait)<br /> ^</p>
<p>/usr/include/c++/4.3/x86_64-suse-linux/bits/gthr-default.h(113): error: function "__gthrw_pthread_key_create" was referenced but not defined<br /> __gthrw(pthread_key_create)<br /> ^</p>
<p>/usr/include/c++/4.3/x86_64-suse-linux/bits/gthr-default.h(114): error: function "__gthrw_pthread_key_delete" was referenced but not defined<br /> __gthrw(pthread_key_delete)<br /> ^<br />compilation aborted for AxisAngle.cc (code 2)</p>
<p>I also tried with -cxxlib key but with the same result.</p>
<p>When compiling with g++ everything is ok.</p>
Tue, 25 May 10 00:31:53 -0700Nikita Tropin289533